Question

Find the mean of first six natural numbers?

Answer 1

mean =sum of all observation/Total number of observation

mean=1+2+3+4+5+6/6



mean = 21/6

mean = 21/6......

hope it helps you

Answer 2

Answer:I think u may know the arithamatic progression

So, by the formula.

Sn = n/2 (a + l) ,where

Sn = sum of number of terms

n = number of terms

a = 1st number of the term

&l = last number of term

=S6 = 6/2(1 + 6)

=S6 = 3(7)

=S6 = 21

For checking the answer u can add numbers from 1 to 6.

Hope it helped you.